notes
-Germans used U-Boats located in bases in France and Norway
-U-Boats hunted in packs
-Tonnage war: sinking supplies
-US and Canada would send convoys to escort supplies
-The convoys used depth charges, Asdic (sonar), hedgehog, and long range aircraft and carrier based aircraft.
-U-Boats hunted in packs
-Tonnage war: sinking supplies
-US and Canada would send convoys to escort supplies
-The convoys used depth charges, Asdic (sonar), hedgehog, and long range aircraft and carrier based aircraft.
video
Summary
German's navy consisted of U-Boats (submarines) which attacked in packs in what is called a tonnage war. After a few years, they increased in technology to fight against the u-boats effectively.